📅 Theme Calendar Overview
| Theme | Active Period | Primary Effects |
|---|---|---|
| 🎃 Halloween | October | Floating pumpkins, flame effects, dark orange gradient |
| 🍂 Autumn | September, November | Falling leaves, fog drift, warm brown gradient |
| 🎄 Christmas | December | Snowfall, twinkling lights, winter blue gradient |
| 🎆 New Year | January | Sparkles, confetti, gold gradient |
| 🌸 Spring | March - May | Falling petals, green glow, nature gradient |
| ☀️ Summer | June - August | Sun rays, heat shimmer, warm gradient |
Halloween Theme
The original seasonal enhancement. Dark, mysterious atmosphere with floating jack-o'-lanterns and flickering flame effects. Perfect for the spooky season.
Visual Effects:
- Dark orange/brown gradient background (#1a0f0f to #2d1810)
- Floating pumpkin icons with rotation animation
- Bottom flame effect with flicker animation
- Warm orange glow throughout
Technical Details:
- Auto-activates when month === 9 (October)
- CSS-only animations (GPU accelerated)
- No external dependencies
- Mobile optimized
Autumn Theme
Harvest season aesthetics with falling leaves and misty atmosphere. Warm browns and golden tones create a cozy feeling.
Visual Effects:
- Warm brown gradient background (#1a1210 to #2d1f10)
- 25 falling leaf emojis (🍂 🍁 🍃) with random timing
- Bottom fog effect with drift animation
- Leaves rotate and translate during fall
Technical Details:
- Auto-activates in September (8) and November (10)
- Skips October to allow Halloween theme
- 10-second fall animation per leaf
- Randomized horizontal drift
Christmas Theme
Winter wonderland with gentle snowfall and festive lights. Cool blues and whites create a serene holiday atmosphere.
Visual Effects:
- Winter blue gradient background (#0a1f2e to #1a3f5e)
- 50 falling snowflakes (❄️) with varying speeds
- Twinkling Christmas lights at top of page
- White glow effects on snowflakes
- RGB light sequence animation
Technical Details:
- Auto-activates when month === 11 (December)
- Snowflakes fade in/out during fall
- 10-second default fall duration
- Randomized sizes and delays
New Year Theme
Celebration mode with sparkles and confetti. Gold tones and explosive animations ring in the new year with style.
Visual Effects:
- Gold gradient background (#1a1510 to #2d2310)
- Continuous sparkle (✨) generation every 300ms
- 30 confetti pieces with random colors
- Sparkles scale and rotate while fading
- Confetti spins while falling
Technical Details:
- Auto-activates when month === 0 (January)
- setInterval creates continuous sparkles
- Auto-cleanup after 2 seconds per sparkle
- HSL color randomization for confetti
Spring Theme
Nature awakens with cherry blossom petals and soft green glow. Fresh and vibrant aesthetic welcomes the growing season.
Visual Effects:
- Nature green gradient background (#0f1a0f to #1a2d1a)
- 20 falling cherry blossom petals (🌸)
- Bottom green glow effect
- Petals drift sideways while falling
- Gentle rotation during descent
Technical Details:
- Auto-activates months 2-4 (March-May)
- 8-second fall duration
- 50px horizontal translation
- Opacity maintained at 0.7
Summer Theme
Warm rays of sunshine and heat shimmer effects. Golden tones and radiant animations capture the peak of summer.
Visual Effects:
- Warm gradient background (#1a1810 to #2d2820)
- 8 rotating sun rays emanating from center
- Bottom heat wave shimmer effect
- Golden glow throughout
- 20-second rotation cycle
Technical Details:
- Auto-activates months 5-7 (June-August)
- Ray rotation staggered by 45 degrees
- Shimmer uses opacity animation
- Linear gradient for ray effects
🔧 Implementation Notes
All themes are:
- ✅ Auto-activating based on current month
- ✅ Pure CSS + JavaScript (no dependencies)
- ✅ Mobile-friendly and responsive
- ✅ GPU-accelerated animations
- ✅ Performance optimized
- ✅ Easily customizable
To add these themes to your site:
- Copy the theme code from the Implementation Walkthrough
- Add CSS to your
<head>section - Add JavaScript before closing
</body> - Test locally first
- Deploy via Git push